src/qml/qml/qqmlvaluetypeproxybinding.cpp

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  41
  42 #include "qqmlvaluetypeproxybinding_p.h"
  43
  44 QT_BEGIN_NAMESPACE
  45
  46 // Used in qqmlabstractbinding.cpp
  47 QQmlAbstractBinding::VTable QQmlValueTypeProxyBinding_vtable = {
  48     QQmlAbstractBinding::default_destroy<QQmlValueTypeProxyBinding>,
  49     QQmlAbstractBinding::default_expression,
  50     QQmlValueTypeProxyBinding::propertyIndex,
  51     QQmlValueTypeProxyBinding::object,
  52     QQmlValueTypeProxyBinding::setEnabled,
  53     QQmlValueTypeProxyBinding::update,
  54     QQmlAbstractBinding::default_retargetBinding
  55 };
  56
  57 QQmlValueTypeProxyBinding::QQmlValueTypeProxyBinding(QObject *o, int index)
  58 : QQmlAbstractBinding(ValueTypeProxy), m_object(o), m_index(index), m_bindings(0)
  59 {
  60 }
  61
  62 QQmlValueTypeProxyBinding::~QQmlValueTypeProxyBinding()
  63 {
  64     QQmlAbstractBinding *binding = m_bindings;
  65     // This must be identical to the logic in QQmlData::destroyed()
  66     while (binding) {
  67         QQmlAbstractBinding *next = binding->nextBinding();
  68         binding->setAddedToObject(false);
  69         binding->setNextBinding(0);
  70         binding->destroy();
  71         binding = next;
  72     }
  73 }
  74
  75 void QQmlValueTypeProxyBinding::setEnabled(QQmlAbstractBinding *_This,
  76                                            bool e, QQmlPropertyPrivate::WriteFlags flags)
  77 {
  78     QQmlValueTypeProxyBinding *This = static_cast<QQmlValueTypeProxyBinding *>(_This);
  79
  80     if (e) {
  81         QQmlAbstractBinding *bindings = This->m_bindings;
  82         This->recursiveEnable(bindings, flags);
  83     } else {
  84         QQmlAbstractBinding *bindings = This->m_bindings;
  85         This->recursiveDisable(bindings);
  86     }
  87 }
  88
  89 void QQmlValueTypeProxyBinding::recursiveEnable(QQmlAbstractBinding *b, QQmlPropertyPrivate::WriteFlags flags)
  90 {
  91     if (!b)
  92         return;
  93
  94     recursiveEnable(b->nextBinding(), flags);
  95
  96     if (b)
  97         b->setEnabled(true, flags);
  98 }
  99
 100 void QQmlValueTypeProxyBinding::recursiveDisable(QQmlAbstractBinding *b)
 101 {
 102     if (!b)
 103         return;
 104
 105     recursiveDisable(b->nextBinding());
 106
 107     if (b)
 108         b->setEnabled(false, 0);
 109 }
 110
 111 void QQmlValueTypeProxyBinding::update(QQmlAbstractBinding *, QQmlPropertyPrivate::WriteFlags)
 112 {
 113 }
 114
 115 QQmlAbstractBinding *QQmlValueTypeProxyBinding::binding(int propertyIndex)
 116 {
 117     QQmlAbstractBinding *binding = m_bindings;
 118
 119     while (binding && binding->propertyIndex() != propertyIndex)
 120         binding = binding->nextBinding();
 121
 122     return binding;
 123 }
 124
 125 /*!
 126 Removes a collection of bindings, corresponding to the set bits in \a mask.
 127 */
 128 void QQmlValueTypeProxyBinding::removeBindings(quint32 mask)
 129 {
 130     QQmlAbstractBinding *binding = m_bindings;
 131     QQmlAbstractBinding *lastBinding = 0;
 132
 133     while (binding) {
 134         if (mask & (1 << (binding->propertyIndex() >> 16))) {
 135             QQmlAbstractBinding *remove = binding;
 136             binding = remove->nextBinding();
 137
 138             if (lastBinding == 0)
 139                 m_bindings = remove->nextBinding();
 140             else
 141                 lastBinding->setNextBinding(remove->nextBinding());
 142
 143             remove->setAddedToObject(false);
 144             remove->setNextBinding(0);
 145             remove->destroy();
 146         } else {
 147             lastBinding = binding;
 148             binding = binding->nextBinding();
 149         }
 150     }
 151 }
 152
 153 int QQmlValueTypeProxyBinding::propertyIndex(const QQmlAbstractBinding *This)
 154 {
 155     return static_cast<const QQmlValueTypeProxyBinding *>(This)->m_index;
 156 }
 157
 158 QObject *QQmlValueTypeProxyBinding::object(const QQmlAbstractBinding *This)
 159 {
 160     return static_cast<const QQmlValueTypeProxyBinding *>(This)->m_object;
 161 }
 162
 163 int QQmlValueTypeProxyBinding::propertyIndex() const
 164 {
 165     return m_index;
 166 }
 167
 168 QObject *QQmlValueTypeProxyBinding::object() const
 169 {
 170     return m_object;
 171 }
 172
 173 QT_END_NAMESPACE